Excavator-shovel.



m5: AVMLABLE mm! H. G. BUTLER.

- EXOAVATOR SHOVEL.

nruu'non FILED M121, 1910.

Patented Aug. 19, 1913.

W1 TNESSES ax -W kw ATTORNEY NI ED STATES -J t. l w.

may

HENRY G'. BUTLER, OF KENOSI-IA, WISCONSIN, ASSIGNOR TO SHNABLE l: QUIIIN, OF.

CHICAGO, ILLINOIS, A COPARTNERSHIP COMI'OSED OF EMILE R. SHNABLE AND 1 JOHN B. QUINN.

To all whom it may concern:

Be it known that I, HENRY G. BUTLER, a citizen of the United States, residing at Kenosha, in the county of Kenosha and State of Wisconsin, have invented certain new and useful Improvements in Excavator-Shovels, of which the following is a specification.

This invention relates 'in general to excavator. buckets and more particularly to that type of buckets or shovels. having an open front with a forward cutting edge and which are mani ulated by means of pulling and hoisting cables.

One ofthe principal objects of my invention is the provision of a bucket adapted to discharge or dump from the rear end and having a closu e for normally closing the rear end of the oucket body during the loadin and hoisting operations. I

y invention further aims to rovide a bucket which will be automatically closed and retained. in closed position by a pull 2-5 upon thedraft member or drag line.

' Other objects and advantages of the present invention will be apparent as the same becomes better understood by reference to the following description when considered in connection with the accompanying drawings illustrating those practical embodiments of the invention which at the present time appear to be preferable constructions.

On the drawings-Figure 1 is a side elevation of a bucket or'shovel embodying my invention, showing the same in closed position; Fig. 2 is a view similar to Fig. 1 showing thebucket in open or dumping position; Fig. 3 is a transverse sectional vlew through the rear portion of the bucket shown in Fig. 1; and 4 is a fragmentary side elevation of a bucket showing another manner of connecting the bucket body and the frame or cradle.

Throughout the various figures of the drawings similar reference characters indicate like parts. I

From an inspection of the drawings it will beobserved that the bucket body A is pivotall mounted to swing in a vertical plane on the frame or cradle 13, the rear end of the frame B being rovided with a closure L adapted to close t e rear 0 en end of the bucket body when the bucket body and frame assume the relative pgsitiaas' shown Specification of Letters Patent.

Application filed February 21, 1910. Serial No. 545,086.

EXCAVATOR-SHOVEL.

Patented Aug. 19,1913.

in Figs. 1 and 4. The bucket is raised and lowered as a whole by a hoistingcable I attached to the top of the frame B and conneeted with any suitable hoisting mecha-'' nism. A draft member or drag line by means ofwhich the bucket is ulledforward in the loading operation an *is held in closed position so long as the pull is exerted thereon, is connected by the portions C with both the frame and the bucket body. In Figs. 1, 2-and 3 a sliding connection "is afforded between the bucket body and the portion O through pulleys or sheaves F fixed to the sides of the body, the ends of the portion C being passed over ulleys I) mounted on the frame and secure to the body A at the points E.

When the bucket is lowered and tension is exerted upon the portions C therear end of the bucket bod will be elevated into engagement with the closure L and will be retained in that position after the bucket has been filled so long as tension is maintained upon the member C. When the draft member is slackened the weight of the rear end of the bucket and the load carried thereby will cause said rear end to. fall into the. position shown in Fig. 2, so that the loadwill be dumped. The opening movement'of' the bucket is limited-by stops or abutments H which engage with the upright portions of the frame B.

In Fig. I the pulley D and the fixed point E are reversed so that a sliding connection between the bucket body and the member C is also afforded at the rear end of the bucket, the fixed connection E being thev connection between the members C and the rearwardly extending portion of the frame.

It is believed that my invention and its mode of operation will be understood from said saws tt-" the foregoing without further description tion between said draft member and the rear end 'of the bucket body to hold the bucket in closed position under pull on said draft member.

2. In an excavator bucket, the combination of a frame, a closure-carried thereby, a bucket body pivotedon said frame, a draft member connected with the front end of the bucket body, and means connecting said draft member with the frame and the rear of the bucket body whereby the bucket is held in closed position under pull on said draft member.

3, In an excavator bucket, the combinaa tion of a frame, a closure carried thereby, a"

bucket body pivoted on said frame, a draft member connected with the front end of said bucket body, a pulley mounted on the frame, and connections between the rear of said bucket body and the draft member having traveling engagement with'said pulley whereby the closure and rear end of the bucket body are maintained in cooperative relation by tension exerted on said draft member. i v

4. In an excavator bucket, the combinationof a frame, a closure carried thereby, a bucket body pivoted on said frame, a draft member, and connections between said bucket body at the rear of the pivotal conmotion and the draft member and engaged with the frame for holding the bucketin closed position under pull on the draft member .,l.,-.-

5, In an excavator bucket, the combinationbf a bucketbody having a forward cut-- ting-edge and an open rear end, a frame", on which said body is pivoted, said frame being provided at its rear end with a closure adapted to close the open rear end of the body, and meansslidingly engaged with the frame and attached tot-he rear end of said bucket whereby the bucket is held in closed position by tension exerted upon said means and is permitted to open when the tension is released.

6. In mechanism of the character described, the combination with supporting means, of a shovel member open at both ends and pivotally attached about an axis intermediate between such ends to said means,

the center of gravity of said shovel beingv so located as to cause the same when loaded to tend to tilt backwardly about its pivotal axis, a gate carried by said means and adapted to close the rear end of said shovel in the raised position of the latter, hauling means attached to said shovel, and means for variably governing the tilting of said shovel attached to the shovel back of its center of gravity, 4

7. In mechanism of the character described, the combination with supporting means, of a shovel member open at both ends and pivotally attached about an axis intermediate between such ends to said means, the. center of gravity of said shovel being so located as to cause the same when loaded to tend to tilt backwardly about its pivotal axis, a gate carried by said means and adapted to close the rear end of said shovel in the raised position of the latter, hauling means attached to said shovel, and

flexible means passing over a part of said supporting means and connected both to said hauling means and to said shovel-back of its center of gravity for controlling the tilting of said shovel.

8. In mechanism ofthe character described, the combination with supporting means, of a shovel member open at both ends and pivotally attached about an axis intermediate between its ends to said means, the

pivotal axis of said shovel lying between the shovels cutting" edge and a point immediately back of the center of gravity of said shovel, a gate carried by said means and adapted to close the rear end of said shovel in the raised position of the latter, hauling means attached to said shovel, and flexible means passing over a part of said sup orting means and connected both to said h auling means and to said shovel back of its center of gravity for controlling the tilting of said shovel.

' 9. In mechanism of the character described, the combination with supporting means, of a shovel member open at both ends and pivotally attached about an axis intermediate between its ends to said means, the pivotal axis of said shovel lying between the shovels cutting edge and a point immediately back oft-he center of gravity of said shovel, a gate carried by said means and adapted to close the rear end of said shovel in thd raised position of the latter, hauling means attached to said shovel, and means located on the opposite side of the pivotal axis from the cutting edge of the shovel for variably governing the tilting of said shovel. 1

10. In an excavator-bucket, the combinationof a bucket body having a forward cutting edge and an open rear end, a closure for sand rear end, a draft member, operative connections between said draft member and the rear end of the bucket, and a connection between said draft member and the rear end of the bucket body to hold thebucket in closed position under pull on said member.

11. In an excavator bucket, the combination of a bucket body having a forward cutting edge and an open rear end, abucket supporting member/to which the sides of the bucket body are rear end of said ucket body, and a draft member'operatively connected to the front end of the bucket body and also connected" with the rear end of said body and with said ivoted, a closure for the supporting member, pull on saiddraft memtion of a bucket body} having a forward ber serving to hold the bucket body in closed cutting-edge and anopen rear end, a bucket 20 relation'to'said closure. a supporting member pivotally connected to 12. In an excavator bucket, "the. combinathe sides of the bucket body, a closure for 5 tion of a bucket body having a forward cutthe rear end-of said bucket bodyconnected I ting edge and an open rear end, a bucket with said supporting member, and means sup ortm member to which the sides of the connecting the rear'end of said body 26 buc et b are ivoted, a closurefor'the said supporting member for elevatin .the rear end 0 said ucketbodv connectedto rear end of the body into closed re ation n 10 said supporting member, and a draft mem- .with said closure when pullis exerted upon ber operativel connected to the front end said means. of the bucket dy and also connected with In testilnony whereof aflix my slgnhture 30 the rear end (Lfesmd boddy apd with t:aid slpin presence of two w1tnesses.- fb fin mem msaid' rat'fnem runer 15 ull .t eIe n being ada ted to hold the HENRY BUTLER ucket body 'in closed re at-ion to said clo- Witnesses-z I sure. I fWM. BUTIER, v 13. In an excavator bucket, the combina- EVANGBIJINE,O., GIBnoNs.

It is hereby certified that in Letters Patent No. 1,070,405, granted August 1 9 1913-,

upon the'applicati'on of Henry Gr. Butler, of Kenosha, Wisconsiu, for an iinprove-i ment in -Exeavator-shovels, an errorappears inthe printed specification reqdiring correetiohas follower lage 2, ]ine .1.17, fo1" the iyord "rea'1""read front; and that i the said Letters P atentsho -ild read with this correction therein that the saule may conform to the record of the case in the Patent O flice.

Signed and sealed this 30th day of September, A. 1913-:

sni r p a R. T." FR ZIER; f A Acting Commissioner of Patenta.

Correction in Letters-Patent No. 1 ,j0:70.405.

t j 7 970, a h. a

supporting member, pull on saiddraft memtion of a bucket body} having a forward ber serving to hold the bucket body in closed cutting-edge and anopen rear end, a bucket 20 relation'to'said closure. a supporting member pivotally connected to 12. In an excavator bucket, "the. combinathe sides of the bucket body, a closure for 5 tion of a bucket body having a forward cutthe rear end-of said bucket bodyconnected I ting edge and an open rear end, a bucket with said supporting member, and means sup ortm member to which the sides of the connecting the rear'end of said body 26 buc et b are ivoted, a closurefor'the said supporting member for elevatin .the rear end 0 said ucketbodv connectedto rear end of the body into closed re ation n said supporting member, and a draft mem- .with said closure when pullis exerted upon ber operativel connected to the front end said means. of the bucket d and also connected with In testilnony whereof aflix my signature 30 the rear end (Lfesmd boddy apd with t:aid SlP- in presence of two witnesses; fb fin mem msaid' rat'fnem runer ull .t eIe n being ada ted to hold the HENRY BUTLER ucket body 'in closed re at-ion to said clo- Witnesses-z I sure. I fWM. BUTIER, v 13. In an excavator bucket, the combina- EVANGBIJINE,O., GIBnoNs.

It is hereby certified that in Letters Patent No. 1,070,405, granted August 1 9 1913-,

upon the'applicati'on of Henry Gr. Butler, of Kenosha, Wisconsiu, for an iinprove-i ment in -Exeavator-shovels, an errorappears inthe printed specification reqdiring correetiohas follower lage 2, ]ine .1.17, fo1" the iyord "rea'1""read front; and that i the said Letters P atentsho -ild read with this correction therein that the saule may conform to the record of the case in the Patent O flice.

Signed and sealed this th day of September, A. 1913-:

sni r p a R. T." FR ZIER; f A Acting Commissioner of Patenta.

Correction in Letters-Pat ent No. 1 ,j0:70.405. 

